FB is no different or better than big oil or big telco. Hopefully the people who work there begin to realize the damage they are doing to this country.
They might not realise it now but I suspect they would should they leave. I for one would feel very uncomfortable working with someone who's ex-Facebook and I don't think I'm alone in that regard. FWIW the damage Facebook's caused goes far beyond the United States.
Telephony very much has network effects, which played a key role in how AT&T built its monopoly (early 20th century).
As do other "network corporations": railroads, commodity trusts, wholesale and retail, banking, information services, higher education.